Cultivator.



A; D. ADRIANGB.

CULTIVATOR. AIILIQATIOH FILED OUT. 11, 1911.

Patented Feb. 18, 1913.

7 2 annncrs-snnm 1.

WITNESSES ATTORNEY,

Patented Feb. 18,1913.

2 slums-sugars ATTORNEY A. D. ADRIANCE. GULTIVATOR.

' APPLICATION FILED 001. 11, 1911. 1,05 3,34; 1..

' a citizen of the United States, residin ADRIAN D. ADRIANCE, OF NEW YORK, N. Y.

currrvn'ron Specification of Letters Patent. Patnted Feb. 18, 1913.

Application filed October 11, 1911. Serial No. 654,171.

To all whom it may concern:

'Be it'known that I, ADRIAN D. ADRIANCEt, a New York city, in the county of New ork and State of New York, have invented certain new and useful Improvements in Cultivators, of which the following is a speci-' fication.

This invention relates to cultivators, and particularly to cultivators of the class in which the shovels are arranged in two or more sets or groups.

The invention consists in certain improvements whereby adjustment of not only the groups of shovels but each unit thereof to various positions may be accomplished, so as not only to change the spacing of the groups from each other but the relative arrangement of the units of each group and their vertical disposition, thus adapting the cultivators for use under difierent conditions in respect to the spacing of the growing plants, the extent to which the disintegration of the soil is to be carried, etc.

The invention further consists also in a novel construction-and arrangement of parts whereby the cultivator may as a whole be adapted to workat different depths.

In the accompanying drawings, Figure- 1 is a side elevation of my improved cultivator attached to a tractionrengine, only a part of which is shown; Fig. 2 is a plan view of the rearpart of the traction-engine, showing the cultivator frame attached thereto and certain parts of said frame removed; Fig. 3 is a side elevation of the forward part of the cultivator frame; Fig. 4*

is a side elevation of the rear part of the cultivator frame; Fig. 5 shows one of the parallel gripping members for the shares of the cultivator; Fig. 6 is a detail view of a fragment of the cultivator frame"; Figs.

7, 8 and 9 are side, front and plan views of one of the share blades; Fig. 10 is a-detail of a fra ment of the shank of a share; and Fi 11 1s a view, showing in side elevation an plan a certain plunger appertaining to a share blade.

In the drawings, 2; designates the frame of a traction en me or other suitable means whereby the on tivator is drawn over the ground to be cultivated, the rear part of which extends back of a shaft 0 arran ed horizontally in suitable hangers ill "T0 t is shaft the frame of the improved cultivator a blade n havin is pivotally attached, as will appear later herein.

ee desi ates skeleton side frames each suitably reinforced and each including an upper rail 9 and a lower rail 6 which are parallel in their rear portions but converge forward in their forward portions as seen in side elevation. As seen inplan, the side frames as to their forward portions converge forwardly, their rear portions-being preferably parallel. f designates crossed braces connecting and stiffenin the'cultiv'ator' frame. The orward end of each side frame is formed as a downwardly opening bearing 9 which .is hooked over the shaft 0, g being a retaining pin. set in the bearing below the' shaft to keep the cultivator frame from being unshipp'edfrom the shaft. Y

Connecting the rails e, and either boltedspaced and transverse members 71.; a similar series of members h is either bolted or riveted to the lower rails 6 each member thereof being directly below the corresponding member in the upper series of members it. In the preferred construction the outermost members h in each series are strips of angle iron, disposed with their vertical sides adjacent to each fother, while the intermediate members k are channel irons, The adjacent vertical parts of each two ad'acent members are formed from end to en with series of coinciding holes 2" (Fig. 5) through which bolts 7' having nuts I: are passed,

function of the bolts being to draw the vertical portions of said members to. ether so that they will. grip the shanks of t e shares and securely hold the same when they are fitted between them.

Nowdescribi'ng one of the shares: Z is a straight metallic shank having a rectangular cross-section whose dimensions are such that it will snugly fitbetwee'n any two adjacent members It and the bolts j. on a pivotm' at thelower end of this shank is fulcrumed forward pivotal movement past the osition shown in Fig. 4, where a sto 0 on t e blade engages the end of the shan Slidabl'y arappreciable rearward pivotal movement ut being limited against 75 or riveted thereto, is the series of parallel character of the The plunger is normally held depressed by a spiral spring 23 coiled about the shank and interposed between said plunger and a collar impinging against a pin a penetrating the shank. The spring is of-suflicient power so as normally to resist the tendency of the bladev to swing backward on itspivot; but should some obstruction be met, the blade will yield backwardly until the obstruction is passed. The construction serves to prevent the breaking or damaging of the blade upon meeting with obstructions which will not yield thereto.

As already intimated each share is secured in position by introducing its shank between corresponding pairs of members it of the two series (upper and lower) and then tightening the bolts so that the said members firmly grip said shanks. It will be observed that not only is each share individually adjustable vertically, by this construction, but that each is also variety of positions between its gripping members, making it not only possible to change the relation of the shares of each group but also the disposition of the groups with relation to each other, according to the work which is to be done by the cultivator. The bolts being arranged one on each side of and close to the shank of each share the shanks are thereby positively held against working sidewise out of position. i

Each side frame e includes a standard 10, the two standards being connected by a cross-piece m in the form of a strip of angle iron bolted thereto, which extends across and rests upon the rear part of the frame 6 of the traction-engine. The bolts y which secure the cross-piece as to the standards may be fitted to any of the vertical series of holes a in the standards. Thus, accord ing to the positionto which the cross-piece is adjusted, the cultivatoras a. whole stands more or less elevated with *relation to the ground, so that its shares work at greater or less depth therein. The standards bear laterally against relatively opposite sides of the frame I) and thus confine the cultivator frame against undue lateral movement.

The cultivator may he raised or lowered as occasion requires from a hoisting mechaadjustable laterally to a- Stlltl overhanging nism 2 of any suitable construction (thatshown being the subject of another copending application filed by me) through the medium of the flexible connections 3 extending around the pulleys 4 and attached to the cultivator frame.

Having thus fully what 1 claim as new Letters Patent is 1. The combination of the longitudinally extending side frames, elongated members secured flatwise upon and extending transversely of the side frames in spaced disposition and having upstanding flanges extending longitudinally thereof and disposed at the adjoining sides of said members, shares having shanks received between said flanges, said flanges having plane adjoining faces, and means, comprising devices arranged one on each side of and close to each shank, for drawing the flanges of said members into gripping relation to each shank, substantially described.

2. In combination with a support, a cultidescribed my invention, and desire to secure by -vator frame pivoted on a horizontal axis at its forward part to the support and having share members in its rear part, a part of the support overhanging the cultivator frame, said cultivator frame having standards, and a cross-piece rigidly attached to and Vertically adjustable on the standards and resting on the overhanging part of the support, substantially as described.

3. In combination, with a support, a cultivator frame pivoted on a horizontal axis at its forward part to the support and havin share members in its rear part, a part of the support overhanging the cultivator frame, said cultivator frame having standards, and

a cross-piece rigidly-attached to the standards and resting on the owrhanging part of the support, said standards being disposed close to relatively opposite sides of part of the support, substantially as described.

in testimony whereof I atfix my signature in presence of two witnesses.

ADRIAN D. ADRIANCE.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

. Washington, D. C. 

